Amateur baseball is baseball in which the players either are not paid for playing, or (as in Town Team Baseball) receive only a modest stipend or employment arranged by the team's boosters. Amateur baseball is played in the United States by players of all ages, from young children to adults.

Varieties

Leagues for various skill levels and age groups exist throughout the US. In ascending order of age participation, here are a few examples:

Youth baseball

Youth baseball is played by elementary-school-age and high-school-age children of both genders. Of the various leagues listed below, Little League baseball is the most widespread. The Little League World Series in Williamsport, Pennsylvania, draws participants from around the world and is televised in the US on ESPN.

National Youth Baseball Championship

The first annual National Youth Baseball Championships (NYBC) tournament was held in August 2008 for players in two divisions: 10U and 12U. The purpose of the tournament is to recognize one team as the "National Youth Baseball Champion." The tournament organizer is the Major Youth Baseball Alliance, LLC, which was formed by eight major national youth baseball organizations, whose programs have more than eight million participants. The eight organizations are: AABC (American Amateur Baseball Congress), AAU (Amateur Athletic Union of the United States), Babe Ruth Baseball, Dixie Youth Baseball, NABF (National Amateur Baseball Federation), Pony Baseball, Super Series Baseball of America, and USSSA (United States Specialty Sports Association).

National all-stars tournament

From 1998 (or earlier) through 2010 (or later), there has been an annual, national all-stars tournament each June — the USA Baseball Tournament of Stars; its predecessor was the National Amateur All-Star Baseball Tournament (NAABT). The tournament features the top 16- to 18-year-old players from various baseball organizations, including the American Amateur Baseball Congress (AABC), American Legion, Babe Ruth Baseball, Dixie Baseball, National Amateur Baseball Federation (NABF), PONY baseball, Major League Baseball's Reviving Baseball in Inner Cities (RBI), and at-large teams from USA Baseball (the governing body of amateur baseball).

School baseball

School baseball is played throughout the United States. High schools often have freshman, junior-varsity, and varsity teams. Some middle schools offer baseball programs. In the 2014-15 season, 486,567 boys and 1,203 girls played baseball at the National Federation of State High School Associations.

American Legion Baseball

American Legion Baseball is popular with junior-high- and senior-high-school students from ages 13 to 19. American Legion also provides regional, state, and national playoffs.

College baseball

College baseball is sanctioned by the NCAA, NAIA, and NCBA. College baseball players, especially professional prospects, often also play in collegiate summer baseball leagues during the off-season. In these leagues, their lodging and meals are provided by their host team, but no money changes hands. Many collegiate summer baseball leagues are affiliated to the National Alliance of College Summer Baseball, National Amateur Baseball Federation or the National Baseball Congress. The MLB Draft League debuted in 2021.

Adult baseball

International level